212 citations · 263 across the 11 of their papers we have counts for
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Shadow evaporation of epitaxial Al/Al2O3/Al tunnel junctions on sapphire utilizing an inorganic bilayer mask
Paul B. Welander, Vladimir Bolkhovsky, Terence J. Weir +2
This letter describes a new inorganic shadow mask that has been employed for the evaporation of all-epitaxial Al/Al2O3/Al superconducting tunnel junctions. Organic resists that are…
Study of loss in superconducting coplanar waveguide resonators
Jeremy M. Sage, Vladimir Bolkhovsky, William D. Oliver +2
Superconducting coplanar waveguide (SCPW) resonators have a wide range of applications due to the combination of their planar geometry and high quality factors relative to normal m…
Reduced leakage current in Josephson tunnel junctions with codeposited barriers
Paul B. Welander, Timothy J. McArdle, James N. Eckstein
Josephson junctions were fabricated using two different methods of barrier formation. The trilayers employed were Nb/Al-AlOx/Nb on sapphire, where the first two layers were epitaxi…
Strained single-crystal Al2O3 grown layer-by-layer on Nb (110) thin films
Paul B. Welander, James N. Eckstein
We report on the layer-by-layer growth of single-crystal Al2O3 thin-films on Nb (110). Single-crystal Nb films are first prepared on A-plane sapphire, followed by the evaporation o…